CN102360540B

CN102360540B - Wide color gamut displays

Info

Publication number: CN102360540B
Application number: CN201110270584.0A
Authority: CN
Inventors: 海尔基·斯特泽恩
Original assignee: Dolby Laboratories Licensing Corp
Current assignee: Dolby Laboratories Licensing Corp
Priority date: 2004-12-23
Filing date: 2004-12-24
Publication date: 2015-01-21
Anticipated expiration: 2024-12-24
Also published as: US20120113162A1; AU2004325939B2; JP2014132346A; MX2007007533A; EP1834320B1; WO2006066380A1; CN101116133B; HK1113218A1; KR101306615B1; EP1834320A1; JP2012093786A; CN102360540A; US20150070409A1; KR20120043153A; US8164602B2; US20160125818A1; EP1831752B1; MX2007007534A; CA2594057A1; JP6592033B2

Abstract

The present invention discloses wide color gamut displays. A display has a modulator illuminated by a illuminator comprising an array of light sources. The array includes light sources of a plurality of colors. The light sources of different colors are individually controllable. Within each color, the light sources that illuminate different areas on the modulator are individually controllable. The display may provide a high dynamic range and a wide color gamut.

Description

Wide color gamut displays

The divisional application that the application is application number is 200480044866.7, the applying date is on Dec 24th, 2004, denomination of invention is the application for a patent for invention of " wide color gamut displays ".

For the mutual reference of related application

The theme that the application discloses is called that with the U. S. application No.60/638122 that on Dec 23rd, 2004 submits to, name the theme of the patented claim of " FIELD SEQUENTIAL DISPLAY OF COLOR IMAGES " is relevant, and this patented claim is by reference to being included in the present note.

Technical field

The present invention relates to color monitor.The present invention can be applicable to graphoscope, TV monitor etc.

Background technology

General liquid crystal display (LCD) has backlight and the screen be made up of the pixel of variable transmissivity in backlight front.Backlight throwing light on equably below to LCD.By the pixel that the transmissivity reducing pixel can make pixel become dark.Make can pass through from the light of backlight by the transmissivity increasing pixel, pixel can be made to become and seem bright pixel.By applying suitable drive singal to pixel, thus produce by bright form with dark region desired by pattern, image can be shown on LCD.

In general color LCD, each pixel is by can being formed by the red, green, blue element controlled separately.Each element comprises the light filter that the light of corresponding color is passed through.Such as, red element comprises red light filter.When only having red element to be set to printing opacity in pixel, then light is by red light filter, and thus this pixel presents redness.Caused the signal of the combination of the different transmissivity of red, green, blue element by application, pixel can be made to have other color.

Backlight LCD generally uses fluorescent light.Name is called that the PCT of HIGH DYNAMIC RANGE DISPLAY DEVICES discloses in the patent document of No.WO03077013A3 and discloses a kind of LED that uses as the display of the high dynamic range of backlight.

Need high efficiency display.Especially the display that can represent color with wide colour gamut is needed.

Summary of the invention

The invention provides some displays.According in the display of an exemplary embodiment of the present invention, the light from luminaire is projected onto on the effective coverage of modulator.Described luminaire comprises the array of the optical transmitting set that can be independently controlled.Described optical transmitting set can be controlled, on the effective coverage at described modulator, project pattern of brightness.Described modulator can be controlled, so that the image desired by viewing location display.

The present invention also provides some for the method for color display.

One aspect of the present invention provides a kind of display, and it comprises the luminaire of the array including light source.Described light source comprises the light source of multiple color.Arrange that modulator is thrown light on by described luminaire to make it.Described modulator comprises multiple pixel, and each pixel has multiple element.Illuminator driver circuit controls the intensity of the light source in each region in multiple regions of luminaire independently, and in each region, control the intensity of often kind of color of multiple color independently.Light source in each region in multiple regions of luminaire utilizes the light with color and the intensity controlled by described illuminator driver circuit to throw light on to the respective regions of luminaire.Modulator driver circuit is connected so that the modulation utilizing pixel element control from the light of luminaire.

In some embodiments of the invention, modulator comprises LCD panel, and light source comprises light emitting diode.

In some embodiments of the invention, the light source of different colours has different maximum light output.In these embodiments, the light source with the color of larger light output more broadly can be separated than the light source of the color with lower maximum light output.

Another aspect of the present invention provides a kind of for the equipment at viewing areas display image.Described equipment comprises the array including the light source that many groups can independently control.Often organize the light that light source launches a kind of color corresponding in multiple color.Described equipment comprises the modulator with the effective coverage including multiple pixel.Described effective coverage is by described matrix lamp.Each pixel can be controlled, to change the ratio inciding the light of effective coverage being arrived viewing areas by passing through.Described equipment also comprises control circuit, and it is arranged to each group according to control signal driving light source, thus projects pattern of brightness on the effective coverage of modulator.Effective coverage has change about the pattern of brightness of each group in intensity.This change is controlled by described control circuit.

Another aspect of the present invention provides a kind of for the method at viewing areas display image.Described method comprises: provide the array comprising the light source that many groups can be independently controlled, and the light source often organized launches the light of a kind of color of the correspondence in multiple color; Responsive control signal drives described array, and make often group project pattern of brightness on the effective coverage of modulator comprising multiple pixel, described pattern of brightness has the change of intensity along with the position on the effective coverage determined by control signal; And, control the pixel of modulator, make optionally to allow light pass through from effective coverage and arrive viewing areas.

The following describes the feature of other side of the present invention and specific embodiment of the present invention.

Accompanying drawing explanation

In the accompanying drawing for illustration of non-limiting example of the present invention,

Fig. 1 is the schematic diagram of the display with the luminaire be made up of the array of three-color LED;

Figure 1A is the process flow diagram of the method illustrated for generation of luminaire and modulator control signal;

Fig. 2 is the schematic diagram of the luminaire be made up of the array of color LED group;

Fig. 3 is the curve for illustration of the point spread function of LED in the luminaire of display;

Fig. 4 is the curve changed with position for illustration of a line brightness on the modulator along the LED illumination by Fig. 3;

Fig. 5 is the curve of the point spread function of LED in the luminaire for illustration of a kind of display, and wherein the LED of different colours has different intensity and different point spread functions;

Fig. 6 is the curve changed with position for illustration of a line brightness on the modulator along the LED illumination by Fig. 5;

Fig. 7 is the curve for illustration of the point spread function of LED in another luminaire of a kind of display, and wherein the LED of different colours has different intensity and different point spread functions;

Fig. 8 is the curve changed with position for illustration of a line brightness on the modulator along the LED illumination by Fig. 7; And

Fig. 9 is the process flow diagram of the method illustrated for correcting the light by broadband pixel elements, and described broadband pixel elements is by the light of two or more colors.

Embodiment

In whole explanation below, describe concrete details to provide understanding thoroughly of the present invention.But, the present invention can implement without these concrete details.In other example, the element that not shown or detailed description is known, to avoid unnecessarily making the present invention unclear.Thus, instructions and accompanying drawing should be considered to illustrative and not restrictive.

Fig. 1 represents display 10, can be wherein that the modulator 12 of LCD plate such as carries out back lighting by the luminaire of the array 14 comprising optical transmitting set 16.In an illustrated embodiment, optical transmitting set 16 comprises light emitting diode (LED).In the following description, optical transmitting set 16 is called as " LED 16 ", and modulator 12 refers to LCD plate.Also other suitable light source can be used to replace LED 16.Other suitable modulator can be used to replace LCD plate 12.

LED 16 comprises the independent transmitter of the light of different colours, and they can be combined and form coloured image.In the example embodiment of Fig. 1, LED 16 comprises red, green, blue optical transmitting set.In alternative embodiments, the combination of other color can be provided.

Optical transmitting set can be encapsulated in discrete encapsulation.In some embodiments of the invention, the transmitter of two or more different colours is encapsulated in a common encapsulation.The transmitter of often kind of color can be controlled independent of the transmitter of other color.The transmitter of the same color of diverse location in array 14 can be controlled independently of each other.

The light launched by LED 16 has narrow bandwidth (generally in the scope of 20nm to 50nm).LCD 12 has pixel 13, and it comprises red, green, blue element 13R respectively, 13G and 13B.The color filter of red, green, blue element has a passband respectively, and it by the light of corresponding a kind of color in the color corresponding to the light launched by LED 16, and stops the light of other color.Display 10 can show very saturated red, green, blue look.In some embodiments of the invention, the passband of the color filter of LCD 12 is narrow (being namely less than 150nm).This passband such as has the bandwidth within the scope of 30 to 100nm.Do not need wide passband, because the light launched by each LED 16 has narrow frequency spectrum.

In certain embodiments, display 10 can be operated by the mode controlled separately with the brightness of wherein LED 16, such as, described in the file of the open No.WO 03077013A3 of PCT.Fig. 1 shows for the illuminator control signals 17 of the intensity of control LED 16 and the modulator control signal 18 for controlling the light quantity passed through by the element of each pixel 13.

In certain embodiments, illuminator control signals 17 makes suitable driving circuit control the brightness of the LED 16 of different colours individually, and in specific color, controls the brightness of the LED 16 in different locus individually.This makes luminaire 14 can have the pattern of the light that different colours mixes by the diverse location projected on modulator 12 on modulator 12.

Fig. 1 is schematic in essence.The element of pixel 13 and LED 16 with any suitable two dimensional arrangements, and need not can arrange according to shown layout.

Display can comprise controller 19, and it produces illuminator control signals 17 and modulator control signal 18, so that the image desired by display.Desired image can be specified by view data 11, and these data directly or indirectly specify the brightness value (and, if image is coloured image, then specified color value) of each pixel.View data 11 can have any suitable form, and can use any suitable color model regulation brightness value and color value.Such as view data 11 can specify:

Red, green, blue (RGB) color value of each pixel;

YIQ value, wherein each pixel is by being called as the value (Y) of brightness and being called as value (I, the Q) expression of colourity for a pair;

CMY or CMYK value;

YUV value

YCbCr value;

HSV value; Or

HSL value.

Figure 1A represents the method 20 for generation of illuminator control signals 17 and modulator control signal 18.Method 20 is by by view data 11 produces illuminator control signals 17.For often kind of color of the LED 16 in array 14, this is performed in 21-2 and 21-3 individually at block 21-1.In the embodiment of Figure 1A, illuminator control signals 17 comprises signal 17-1,17-2 and 17-3, a kind of color of the LED in each control array 14 wherein.

Illuminator control signals 17 can be produced to make LED 16 project desired pattern of brightness on LCD 12 by the intensity of each determining driving LED 16 in controller 19.Preferably, for often kind of color, be such in the brightness of the pattern of brightness at each pixel 13 place, it makes the brightness of this pixel 13 specified by view data 11 at the element 13R for this pixel, can be implemented in the modulation range of 13G and 13B.That is, it is desirable to make brightness L be:

L×T _MIN≤L _IMAGE≤L×T _MAX (1)

Wherein, T _mINit is the minimum transmittance of pixel element; T _mAXit is the maximum transmission rate of pixel element; And L _iMAGEthe brightness of this pixel specified by view data 11.The relation of formula (1) is preferably set up respectively for each pixel of the LCD 12 of often kind of color.

Because the relative root mean square error of the LED of different colours 16 generally changes with the position on LCD 12, the color being projected the light on LCD 12 by the transmitter of array 14 generally changes with the position on array 12.

Controller 19 can produce the modulator control signal 18 of each element of each pixel 13 for LCD 12 in the following manner: make the brightness desired by pixel data 11 specifies divided by the brightness of this element provided by illuminator array 14 when the illuminated device control signal 17 of illuminator array 14 drives.The brightness provided by illuminator array 14 can be called as " effective pattern of brightness ELP ".Because the light of a kind of color of each element 13R, 13G or 13B emission array 14, ELP can be calculated individually for often kind of color, and can carry out the calculating for determining modulator control signal 18 individually for often kind of color.

Method 20, at block 22-1, calculates the ELP of the light of often kind of color in 22-2 and 22-3.Method 20 determines the modulator control signal of often kind of color at block 23-1,23-2 and 23-3.In the embodiment of Figure 1A, modulator control signal 18 comprises signal 18-1,18-2 and 18-3, and they control the element of first, second, and third kind of color in modulator 12 respectively.

The layout of Fig. 1 can be operated in the mode of Energy Efficient, this is because the illumination pattern projected on any region of LCD 12 by array 14 can be made to have the color of the color close to pixel in this region 13.Such as, when view data specify an image-region should mainly red, fully or almost entirely can be provided the back lighting of corresponding region of LCD 12 by the red emitter of array 14.Blueness in this region and green emitter can be turned off or be operated with the level reduced.

Fig. 2 represents the luminaire 25 of the specific arrangements with discrete color LED 26.In luminaire 25, LED 26 arranges by group 21.Often organize 21 and comprise red LED 26R, green LED 26G and blue led 26B (being referred to as LED 26).Fig. 2 shows the signal 27R being respectively used to red, green, blue LED, 27G and 27B (being referred to as signal 27).Drive singal 27 makes the intensity of driving circuit 28 control LED 26, thus on the effective coverage of LCD 12, provide the pattern of brightness desired by often kind of color.

Being uniformly distributed of LED 26 makes LED 26 can provide the relatively uniform illumination of LCD plate for the LED 26 of often kind of color.Fig. 3 represents the example of the point spread function for multiple LED 26.In figure 3:

In often kind of color, the point spread function of adjacent LED 26 is overlapping.

Each of LED 26 is with maximum output services.

Each LED 26 produces the light (being represented as 1.0, arbitrary unit) of same intensity at the peak value of its point spread function.

The LED 26 of often kind of color is evenly distributed in luminaire 25.

Fig. 4 represents often kind of color of the LED represented for the point spread function by Fig. 3, as the total intensity of the function of the position along a line.Every bar curve of Fig. 4 can obtain by the point spread function of all transmitters of a kind of color at each point is added together.Can find out, for often kind of color, to there is a value I _mIN, thus by means of controlling the LED of this color suitably, can make to be more than or equal to I in the intensity of this color of each point _mIN.

For often kind of color, the change of the position of intensity ELP can by regulating the transmission of light to compensate by means of modulator 12.

The maximum intensity of all LED 26 need not be made all identical.The LED of different colours is tending towards having different efficiency.The efficiency (light quantity that given electric power produces) of general red LED is greater than the efficiency of green LED.General redness and green LED have larger efficiency than general blue led.Up to now, the brighter LED of any available color can be obtained with larger cost.The deviser of display and can become originally to select suitable LED according to multiple factor such as maximum light output, power demand.Current usual discovery provides the red, green, blue LED of the flux ratio with 3: 5: 1 to have best cost efficiency, and utilize this flux ratio, red LED brightness is 3 times of blue led, and the brightness of green LED is 5 times of blue led.

Fig. 5 represents in an embodiment of the present invention about the example of the point spread function of several LED, and wherein green LED ratio launches the redness of the light of same intensity and the light of the larger intensity of blue LED emission.In Figure 5, red LED has wider point spread function than blue led, and green LED has wider point spread function than blue led.The width of point spread function can be taken as the whole width (FWHM) under half maximum.

Fig. 6 represents often kind of color of the LED represented for the point spread function by Fig. 5, as the total intensity of the function of the position along a line on modulator (such as LCD 12).Can find out, I _mINdetermined by green LED.In any position of a line of the curve along survey sheet 6, I can be reached more than from light that is blue and red LED _mINintensity.

The maximum intensity of the LED of different colours, point spread function and spacing can be conditioned to reach I in an illuminator array _mINdesired value and waste power with exceeding.In some embodiments of the invention, when all LED 26 are in maximum output, modulator 12 is thrown light on very equably by the light of often kind of color, and the light mean intensity of often kind of color is substantially equal to the mean intensity of the light of often kind of color of (namely within ± 10% or ± 15%) other color.

In certain embodiments, array 14 comprises the first light source of the point spread function with the first width and has the secondary light source of point spread function of the second width.First and second light sources launch the light of different colours.Each of first and second light sources distributes in array 14 substantially equably.The separated distance of adjacent light source ratio of distances constant separated with the adjacent light source in secondary light source in the display in the first light source, within a threshold quantity of the width ratio of the first and second width, such as 15%.

In some embodiments of the invention, in luminaire 25, the quantity of the LED of often kind of color is inversely proportional to the flux ratio of LED at least approx.Such as, when to have flux ratio be the LED of three kinds of colors of 3: 5: 1 to luminaire, then the quantity of the LED of each of three kinds of colors can be 5: 3: 15 in a luminaire.The LED of often kind of color is evenly distributed over substantially on the modulator.In certain embodiments, the point spread function of LED to have with LED between spacing and the width increased.The point spread function of a kind of LED of color can have the width that the spacing between the LED of this color is directly proportional.

Fig. 6 represents the point spread function of the LED of an example set.In figure 6, green LED has higher intensity, wider spacing and wider point spread function than red or blue led.Red LED has the maximum intensity, spacing and the point spread function widths that occupy green and in the middle of the corresponding parameter of blue led.Fig. 7 represents often kind of color of the LED represented for the point spread function by Fig. 6, as total intensity of the function of the position along a line on modulator (such as LCD 12).

Some embodiments of the present invention provide the luminaire of the optical transmitting set be independently controlled with more than three kinds of colors.Such as, except red, green, blue optical transmitting set, yellow or cyan light emitters can also be provided.Each pixel of modulator 12 can have the element of the light corresponding to often kind of color of being launched by luminaire 14.Such as, when luminaire comprises red, green, blue and amber light emitters, each pixel of modulator 12 can have the element of element, the element of transmitting green light, the element launching blue light and the transmitting sodium yellow launching red light.

In some embodiments of the invention, the pixel of modulator 12 comprises the light passing through two or more colors of being launched by luminaire 14 at least in part.Can be called as " broadband elements " by the element of the light of two or more colors.Such as, the RGBW LCD plate comprising red, green, blue and white element can be obtained.In this plate, white element does not have light filter, therefore by the light by any color.This white element can be called as " broadband elements ".

Broadband elements can be used for the brightness increasing pixel.Because the color of color close to pixel being projected the light on modulator 12 by luminaire 14 can be made, the color saturation of pixel can not be reduced significantly by increasing the transmission of light by means of broadband elements (preferably " white broadband elements ") brightness of pixel can being increased.

In certain embodiments, the broadband elements in pixel is used to control additional primary colours.Such as, the white element in pixel can be used for the light by a kind of color provided by luminaire, and other element in pixel all has light filter, its other color a kind of by being provided by luminaire.Such as, RGBW LCD plate can carry out back-lighting by the array of the optical transmitting set of the light such as gold-tinted of the light such as red, green, blue and additional color of generation basic colors.Red, green, blue is by the red, green, blue elements modulate of the correspondence in LCD plate.Gold-tinted is modulated by the white element in LCD plate.

In this embodiment of the present invention, for the image-region of one group of optical transmitting set corresponding to luminaire, there are 3 kinds of primary image situations.They are:

The unsaturated yellow of image-region.In this case, image can not consider white pixel and reproduced.White pixel can be closed.In alternative, white pixel can be opened to allow more rgb light suitably by.The yellow led of luminaire is off or only on to the degree making it support the RGB colour brightness in white portion.

The yellow that the color of pixel is in the image area mainly saturated.In this case, the red, green, blue LED corresponding to this region ends or dimmed substantially, and yellow led conducting in bright level.Main use white sub-pixels modulation is now from the sodium yellow of yellow led.

Image-region comprises the mixed of multiple pixel, and some of them pixel shows saturated yellow, and other pixel then has red, green or blue component significantly.In this case, luminaire utilizes the light of whole 4 kinds of LED colors to the pixel illumination in this region.The white pixel element of modulator can be opened to allow sodium yellow component to pass through.Permission red, green, blue also passes through by white pixel element.Result will be a suitable yellow area, and it is by the rgb light desaturation a little by white filter.By reducing the light of the red, green, blue element by pixel that should be yellow, this desaturation can be made to minimize.This slight desaturation is generally acceptable, because the yl moiety in region is little (or this will be an example of second case).By providing the yellow led that can throw light on to modulator with the sodium yellow slightly brighter than red, green, blue light component, desaturation can be reduced further.

In certain embodiments, controller 19 corrects the modulator control signal being used for the element corresponding to basic colors, true by this of broadband elements to compensate basic colors light.Fig. 8 represents a kind of method 60 that can be applicable to provide this compensation.In block 62, method 60 determines the illuminator values 63-1 of multiple basic colors, 63-2,63-3, and for the illuminator values 63-4 of extra color.These illuminator values can obtain in any suitable manner.These illuminator values specify the brightness of the light source in luminaire 14.

In block 64, method 60 determines the ELP for all colours.Block 66 determines the modulator value 67 for broadband pixel elements.Extra pixel modulator values 67 is selected such that to allow the additional color of desired amount by each pixel.

Block 68 determines the modulator value 69-1 for the pixel element corresponding to basic colors respectively, 69-2 and 69-3.These basic colors modulator value can be determined for each pixel and often kind of basic colors in the following manner:

Being determined by view data 11 should by the amount of the light of the basic colors desired by the modulator for this pixel;

Deduct the amount of the light of this basic colors passed through by wide-band pixel (this amount can be determined by the ELP of this basic colors and extra color modulator values 67); And

Select the modulator value of element being used for this basic colors, so that the additional optical of this basic colors (if any) needed by making to be equaled desired amount by the total amount of the light of basic colors passed through in this pixel.

Some realization of the present invention comprises computer processor, and its execution makes processor perform the software instruction of method of the present invention.Such as, the one or more processors in controller 19, by performing the software instruction in the program storage can accessed by processor, can realize the method for Figure 1A and/or 8.The present invention can also provide in the form of a program product.Described program product can comprise any medium, and its carrying comprises one group of computer-readable signal of instruction, and described instruction, when being subsequently can by computer device and performing, makes data processor perform method of the present invention.According to program product of the present invention can in various multi-form in any form.Described program product such as can comprise physical medium, such as magnetic data storage media (comprising floppy disk, hard disk drive), optical data carrier (comprising CD ROM, DVD), electronic data storage medium (comprising ROM, flash RAM etc.) or transmission type media (such as numeral or analog communication links).

When mentioning element (such as software module, processor, assembly, device, circuit etc.) above, except as otherwise noted, refer to this element (comprising alleged " device ") should be interpreted as comprising as described element equivalent, any element (being namely functionally equal to) of the function that performs described element, comprise the incoordinate element of structure of structurally described in an exemplary embodiment of the invention with disclosed execution function.

Obviously, according to explanation above, for those skilled in the art, do not depart from the scope of the present invention and conceive, various change and remodeling can be made.Such as:

Needing not to be LED according to the light source in the luminaire in display of the present invention, and can be the light source of other type any.

Needing not to be RGB light source according to the light source in the luminaire in display of the present invention, and can be the light source of other color any.

Can be made up of more than one optical transmitting set according to the light source in the luminaire in display of the present invention.

Luminaire can comprise the light source (although if will realize full gamut, generally at least needing 3 kinds of colors) greater or less than 3 kinds of different colours.

In the result from a block not by the operation starting next block shown is in order taken, the operation of the square of the method for Figure 1A and 9 can partly or wholly perform by different orders.Such as, until the block 68 of Fig. 9, the ELP about basic colors is not needed.ELP about basic colors can determine any time between block 62 and 68.

Thus, scope of the present invention should be explained according to the essence limited by claim below.

Claims

1. a display, it comprises:

Luminaire, comprises the array of light source, and described light source comprises the light source more than three kinds of colors;

Modulator, be arranged to be thrown light on by described luminaire, described modulator comprises multiple pixel, and each pixel has multiple element;

Illuminator driver circuit, it controls the intensity of the light source in multiple regions of luminaire in each region independently, and control the intensity of often kind of color in multiple color in each region in described multiple region independently, the light source wherein in described multiple region of luminaire in each region utilizes the corresponding region of light to described modulator with color and the intensity controlled by described illuminator driver circuit to throw light on; And

Modulator driver circuit, connects into and controls by the element of described pixel to the modulation of the light from luminaire,

Wherein said modulator comprises LCD panel.

2. display as claimed in claim 1, wherein light source comprises light emitting diode.

3. the display according to any one of claim 1-2, wherein luminaire comprises the secondary light source of the first light source of the light launching the first color and the light of transmitting the second color, and each wherein in the first light source has the light output larger than secondary light source.

4. display as claimed in claim 3, wherein compared with secondary light source, the first light source has wider spacing in an array each other.

5. display as claimed in claim 4, wherein the first light source has the point spread function wider than secondary light source.

6. display as claimed in claim 5, wherein the ratio of the spacing of the first light source and the spacing of secondary light source is within 15% of the ratio of the width of the point spread function of the first light source and the width of the point spread function of secondary light source.

7. the display according to any one of claim 1-2, wherein when maximum light output, the light source of often kind of different colours throws light on to modulator with the mean intensity within 15% of the mean intensity of the light in often kind of other color.

8. display as claimed in claim 5, wherein when maximum light output, the light source of often kind of different colours throws light on to modulator with the mean intensity within 15% of the mean intensity of the light in often kind of other color.

9. display as claimed in claim 1, wherein said array comprises the discrete light source of the varying number of often kind of color in described multiple color.

10. display as claimed in claim 9, the maximum light output of the light source of a kind of color in wherein said multiple color is equal for often kind of color in described multiple color with the product of the quantity of the light source of this color.

11. displays as claimed in claim 1, wherein the element of modulator comprises the element with light filter, and described light filter has the bandwidth of 150nm or less.

12. displays as claimed in claim 1, wherein the element of the pixel of modulator comprises the element corresponding to often kind of color in described multiple color, each element wherein in these elements comprises color filter, it by the light of corresponding color, and can stop the light of other color in described multiple color.

13. displays as claimed in claim 12, wherein color filter has the bandwidth of 150nm or less.

14. displays as claimed in claim 12, wherein the element of the pixel of modulator comprises at least one broadband elements, and described broadband elements can by the light of two or more colors in described multiple color.

15., as the display in claim 1-2 or 9-14 as described in any one, comprise controller, and this controller is arranged to and controls modulator driver circuit according to view data and the light pattern that projected on modulator by luminaire.

16. displays as claimed in claim 5, comprise controller, and this controller is arranged to and controls modulator driver circuit according to view data and the light pattern that projected on modulator by luminaire.

17. displays as claimed in claim 15, its middle controller comprises the device for estimating to be projected by luminaire for often kind of color in described multiple color the light pattern on modulator.

18. displays as claimed in claim 17, its middle controller comprises for for often kind of color in described multiple color, according to the light pattern of the view data of this kind of color with the estimation of this kind of color, determines the device of the modulator driving signal of this kind of color.

19. displays according to any one of claim 1-2 or 9-14, wherein said array comprises redness, blueness, green and yellow light sources.

20. displays as claimed in claim 19, each pixel of wherein said modulator comprises the element of the element of transmit red light, the element of transmit blue, the element of transmit green and transmission gold-tinted.

21. 1 kinds for viewing areas display image equipment, described equipment comprises:

Array, comprises the light source that can independently control more than three groups, often organizes the light of light source transmitting more than a kind of color of the correspondence in three kinds of colors;

Modulator, has the effective coverage comprising multiple pixel, and described effective coverage is by described matrix lamp, and each pixel can be controlled to change to be passed through and arrives the ratio inciding the light on effective coverage of viewing areas; And

Control circuit, it is arranged to and drives each group light source according to control signal, thus projects pattern of brightness on the effective coverage of modulator, and the pattern of brightness about each group has the change of intensity on the effective coverage controlled by described control circuit,

Wherein said modulator comprises LCD panel.

22. equipment as claimed in claim 21, wherein, for each group, the width of the point spread function of this group light source is different from the width of the point spread function of other group light source.

23. 1 kinds for viewing areas display image method, described method comprises:

The array comprised more than the light source that can independently control of three groups is provided, often organizes light source and launch light more than a kind of color of the correspondence in three kinds of colors;

Responsive control signal drives described array, and make often group project pattern of brightness on the effective coverage of modulator comprising multiple pixel, each pattern of brightness has the change of intensity along with the position on the effective coverage determined by control signal; And

Control the pixel of modulator, arrive viewing areas optionally to allow light to pass through from effective coverage,

Wherein said modulator comprises LCD panel.

24. methods as claimed in claim 23, wherein each pixel of modulator comprises multiple element that can independently control, described multiple element that can independently control comprises three primary elements, for described more than three kinds of colors in three kinds of colors, described primary element has color filter, this color filter can stop the described light more than other color in three kinds of colors by the light of this color, and the pixel wherein controlling modulator comprises the primary element controlling each pixel.

25. methods as claimed in claim 24, the element that wherein can independently control comprises the broadband elements of the light by two or more colors, and described method comprises:

Determine the modulator value about described broadband elements, this modulator value controls the transmission of described broadband elements to light, and

The modulator value about other element in described element is determined at least in part according to the modulator value about described broadband elements.

26. methods as claimed in claim 25, wherein said array comprises the group of red light source, the group of blue-light source, the group of green light source and can't help the group of light source of additional color that any primary element passes through, wherein determines to comprise about the modulator value of broadband elements to select modulator value to pass through with the light of the aequum making additional color.

27. methods as claimed in claim 25, described method comprises:

Produced about the described illuminator values more than each color in three kinds of colors by the view data limiting the image that will be shown, the described illuminator values about each color determines the brightness of the light source in the group of the light source of this color;

For described more than each color in three kinds of colors, estimate the pattern of brightness will produced on the modulator by driving described array according to illuminator values;

For described more than each color in three kinds of colors, by view data and the pattern of brightness determination modulator value estimated this color;

The often group light source in array is driven according to the illuminator values of correspondence, and the primary element of modulator value driven modulator according to correspondence, so that reproduced image.